Discussion in 'Foundry tools and flasks' started by HT1, Oct 4, 2020.
great video, but the flask at the 7:30 minute mark made me pause and double take,
I thought at first it was silica molds, seems quite clever. I assume the funnel/filter allows to skip the skimming process, or to complete it but what is it made from, stainless steel? People advice against steel crucibles as it can cause contamination, but wouldn't such a contraption cause trouble? Or is it something more "exotic" like titanium, tungsten ...?
My grandpa had some like that. Pretty neat!
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